2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Mufflers

Whether your diesel truck's factory muffler has seen better days, or you want to fine-tune it's sound, we here at Alligator Performance have a bunch of aftermarket, universal mufflers that can get the job done. We have a wide selection of different mufflers with a variety of internal designs, lengths, diameters, materials, exit styles, and finishes so that you can find the perfect muffler for your build. We have everything from ultra-quiet chambered mufflers, aggressive straight-throughs, and awesomely-loud race mufflers, giving you a ton of options for your Duramax, Cummins, or Powerstroke's exhaust note.